Smash-preventer



Patented Mar.' 22, 1921.

' 2 SHEETS-SHEETI od .Y

/s ll L i 1 JNVENTORS. 4 y 5l 5) o-alo @Len- ATTORNEY kn. i

all

ATENT QFIfICl-I.c

j, nuArreiinor, cINQUfEGaANANnPsQUALnDJcAPnio;oF NATIcx, iai-IonaISLAND.

. f:appncannnfmeanovember 11,1919;` serirnofatmac. 1

ToaZZ whom t may concern: i.

Be it known that we, Andino Citroen?- GRANA 'and PASQUALE DaCArmio,citizensof the UnitedStates, residing atlNat-ick, county of `Kent andState ofRhode Island, havelin-` vented certain new and usefulImprovements in Smash-Preventers and we do hereby`decla-re.thef.followingjto be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

Our invention relates to devices for banging olf' the loom when animperfect transfer of the bobbin to the shuttle hasbeen made.

Occasionally the transfer mechanism fails to push the bobbin entirelyWithin the shuttle, but leaves' a portion of the former upwardlyprojecting, thereby causing break downs in the loom.

It has been attempted to bang off the loom by interposing a rigid` armin the path of` the projecting bobbin. The rigid character of the armhas resulted in tacting and other parts.

The objects of our invention are to ove-rcome the recited defects, andto attain this breaking the conend in a structure adapted to facilelapplicai tion without alteration in the usual type of looms, and in a'structure inexpensive to construct and apply. j

To the above ends essentially our invention consists in such parts andin such combinations of parts as fall within the scope of the appendedclaims.

In the accompanying drawings which form a part of this specification,

Figure 1 is a plan view,

Fig. 2, a side elevation of the same Structure at the left end of thelay viewed from the rear of the loom,

Figs. 3 and 4, sections on lines 3-3 and 4-4 respectively of Fig. 1, and

Fig. 5, a perspective view of the same.

Like reference characters indicate like parts throughout the views.

In the drawings 10 isthe lay of a loom carrying the shuttle box 11comprising `front wall 12 and rear wall 13, the latter having `the webportion or top plate 14. 15 is the @Spcification of Letters1 Patent.

`shown in Fig. 3, thus preventing the Patented Mar.` 22, `13921.

parts that my device` is herein `set forth.

lof an empty bobbin or jifiellercarrier having a head 26. It is in con-`junctionwith such `usual wellmknoxvn loom i Near :one endxthereof theflat portion 14 of the top` plate is slotted vor cut away' lon- 1gitudinallypas at `27, sokthat lthe exposed edgenofi theywebyportion 13forms a rib 28 and a `shoulder 29. A belt 30 is threaded or otherwisesecured in the lay below the shoulder 29 and has a head 31 constitutinga pivot member for a bracket 33. The latter comprises an upright portion34provided in this instance with al laterally offset upper portion 35carrying a horizontal arm 36 havinfr in the form thereof herein shown averti'ca ly offset `end 37 merging in the `portion 35. Near its lowerend the portion 34 of the bracket has a perforation 39 through whichloosely passes the bolt 30,

thus loosely pivoting the b-racket between the head 31 and the layshoulder 23. The arm 36 is substantially at right angles to the portion34 of the bracket and extends horizontally over the shuttle box. Theportion 34 of the bracket has a transverse angular bend 41. Spaced apartcavities 44 in the arm may be present to insure clearance ofthe'shuttlein case the height of the wall 13 of any particular loom isexcessively low.

The bracket 33 is maintained in normal upright position against theshoulder 29 by a helical spring 47 attached at one end to a screw 51 inthe lay, and enga ed at its other end by passing through a` hole 53 inthe portion 34 of the bracket.

The operation of our device is as follows: The ann-36 is during thetransfer of the bobbin normally in retracted position and spaced abovethe path of the shuttle sulficiently to permit passage of the shuttlethereunder without interference. If, however, the transfer of the bobbinis faulty, and thehead 26 thereof projects above the `plane of theshuttle, the movement ofthe shuttle toward the, race will cause thebob'- bin head 26 to strike the arm 36, and cause the bobbin spindle 25to move downwardly and lock the shuttle in the shuttle box, as shuttlefrom moving along the race to la a weft thread. This failure to lay a wet thread causes the usual weft detector or weft stop to come into` playthereby causing the banging off of the loom in the usual manner.

The impact ofthe head 26 against the arm 35 is cushioned by the spring47, so that no jar or injury to the shuttle orrloom parts results. o-

- We claim Y Y Y 1. In combination With aloom having a shuttle box, ashuttle operating therein, and a bobbinin the shuttle, of a bracketpivotally associated With theshuttle box, an arm 0n said bracketoverhanging the shuttle box and spaced above the shuttle, said armadapt- -ed to be struck by a bobbin when projecting from the shuttle,ywhereby to cause the arm to swing down and lock the shuttle a ainstmovement, thereby preventing the s uttle from laying the weft strand, asa consequence of which the weft stop Will cause the banging off of theloom and means connecting said bracket with some fixed part to hold thebracket normally in upright position.

2. In combination with a 100m having a shuttle box, a shuttle operatingtherein, and

la bobbin in the shuttle, of a bracket pivotpermit the movement of thesame when the arm is struck by a projecting bobbin.

In testimony whereof, We aiix our signatures.

ANGELO P. CINQUEGRANA. PASQUALE DE-CAPRIO.

